<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
<style> 
	.content {
		background-color: red;
	}
	.class1 {
		background-color: blue;
		position: relative;
	}
	.class2 {
		background-color: green;
		position: absolute;
		top: 0px;
		left: 25%;
		width: 75%;
		height: 400px;
	}
	.class3 {
		background-color: grey;
		position: absolute;
		top:0;
		clear: both;
	}

</style>
</head>
<body>

<div class="content">

	Hovedcontent
	<br>
	lalalal
	<br>
	aladdlfsdfl
	
	<div class="class1">	
		class1
		<div class="class2">class2</div>
		<div class="class3"></div>
	</div>
	<div class="class4">class4</div>
	
</div>
</body>
</html>